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authorPekka Enberg <penberg@cs.helsinki.fi>2009-11-25 21:14:48 +0300
committerPekka Enberg <penberg@cs.helsinki.fi>2009-11-29 10:01:59 +0300
commit74e2134ff892ee4ea4fbd52637060b71e540faf1 (patch)
treea0747c885ca2bc04745a77ef4a902d121acbe44f /Documentation/ABI/testing
parentb419148e567728f6af0c3b01965c1cc141e3e13a (diff)
downloadlinux-74e2134ff892ee4ea4fbd52637060b71e540faf1.tar.xz
SLUB: Fix __GFP_ZERO unlikely() annotation
The unlikely() annotation in slab_alloc() covers too much of the expression. It's actually very likely that the object is not NULL so use unlikely() only for the __GFP_ZERO expression like SLAB does. The patch reduces kernel text by 29 bytes on x86-64: text data bss dec hex filename 24185 8560 176 32921 8099 mm/slub.o.orig 24156 8560 176 32892 807c mm/slub.o Acked-by: Christoph Lameter <cl@linux-foundation.org> Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
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